Death Note Theory: Has L ever seen Rem             before

          If you recall,L has already freaked out over the fact he heard the word ''Shinigami''. Well,I am going deeper into this. Later on the series,L finally see Rem for the first time. Or is he?

    I've re-watched the scene over and over and I have noticed something very odd about L's reaction. It seems to me that L may have seen already Rem before. But how can this be? Well,the answer lies through L's childhood. You see,L is confirmed to be an orphan during his youth. But was this always been the case? How did he end up found by Watari alone? Did something happened to him or perhaps his parents? Did he escaped from someone,or perhaps from something? In a previous theory,I stated that a Shinigami may have came to the Human World to better view the human life. The Shinigami was seen by a young little kid,L. Now earlier,I said that L has a odd reaction upon seeing Rem. Maybe Rem was actually that Shinigami L saw when he was a kid. But that does not really answers to why he reacted. If I recall the other theory,L was curious of Rem,as a kid,like any kid would. Rem tried to give him a Death Note but the police force has arrived and begins to shoot at the Shinigami. I did say that this has caused Rem to flee,but I don't think it might been what happened. L's parents could have been scientists. When they captured Rem,his parents must have done experiments on Rem,causing L to get traumatized. Thus,why Rem despises humans,thinking they are disgusting. Furious,Rem went into an outrage,hurting L in the process. While his parents tries to apprehend Rem,L ran away on his own,scared from what he has seen. 

Years later,L somehow remembers that very day. He wanted to prove to everyone that the Shinigami are indeed real,but no one believed him,claiming he made this up. However,L has not give up. He remembers Rem. He wants to find her. This is why he reacted directly when he saw her. He could'nt believe he finally found her after all the years. That one Shinigami who wanted to befriend him. That one Shinigami who wanted to protect him. That one Shinigami whom felt betrayed by humans. That one Shinigami whose been experimented on. Unfortunately,L never got the chance to tell her that he's been trying to find her for years,to say thank you,for everything she has done for him. Sadly,he died from his one and only friend,Rem,by a heart attack,name written in the Death Note.